Subject: MathematicsTitle: Mathematical ProofsAdd BookmarkDescription: In this lesson, from Science NetLinks, students explore the nature of logic, evidence, and proofs in the context of mathematics. This lesson would be appropriate after students are familiar with the Pythagorean Theorem.Thinkfinity Partner: Science NetLinksGrade Span: 9,10,11,12

Subject: MathematicsTitle: Caesar CipherAdd BookmarkDescription: In this lesson, one of a multi-part unit from Illuminations, students investigate the Caesar substitution cipher. Text is encoded and decoded using inverse operations.Thinkfinity Partner: IlluminationsGrade Span: 9,10,11,12